[TIMOB-15065] Android: HTTPClient does not send body for DELETE requests

Problem description

When using the HTTP verb 'DELETE', the body does not seem to be sent out, when passing it to the send() method.

Steps to reproduce

var payload = {
	"first": {
		"id" : "11"
	},
	"second" : "TEST"
};

var xhr = Titanium.Network.createHTTPClient({
	onload: function (e) {
		alert(this.responseText);
	}
});
xhr.open('DELETE', 'SOMESERVER');
xhr.setRequestHeader("Content-Type", "application/json");
xhr.send(JSON.stringify(payload));

Running the code, on the server side there is no data received; using PHP, I both verified $_POST and json_decode(file_get_contents('php://input')) and they are empty. Changing the method to POST or PUT will show the data on the server.